RegAllocStats (..),
regDotColor,
+ pprStats,
pprStatsSpills,
pprStatsLifetimes,
pprStatsConflict,
data RegAllocStats
+ -- initial graph
+ = RegAllocStatsStart
+ { raLiveCmm :: [LiveCmmTop] -- ^ initial code, with liveness
+ , raGraph :: Color.Graph Reg RegClass Reg -- ^ the initial, uncolored graph
+ , raLifetimes :: UniqFM (Reg, Int) } -- ^ number of instrs each reg lives for
+
-- a spill stage
- = RegAllocStatsSpill
- { raLiveCmm :: [LiveCmmTop] -- ^ code we tried to allocate regs for
- , raGraph :: Color.Graph Reg RegClass Reg -- ^ the partially colored graph
+ | RegAllocStatsSpill
+ { raGraph :: Color.Graph Reg RegClass Reg -- ^ the partially colored graph
, raSpillStats :: SpillStats -- ^ spiller stats
- , raLifetimes :: UniqFM (Reg, Int) } -- ^ number of instrs each reg lives for
+ , raLifetimes :: UniqFM (Reg, Int) -- ^ number of instrs each reg lives for
+ , raSpilled :: [LiveCmmTop] } -- ^ code with spill instructions added
-- a successful coloring
| RegAllocStatsColored
- { raLiveCmm :: [LiveCmmTop] -- ^ the code we allocated regs for
- , raGraph :: Color.Graph Reg RegClass Reg -- ^ the colored graph
- , raPatchedCmm :: [LiveCmmTop] -- ^ code with register allocation
- , raLifetimes :: UniqFM (Reg, Int) } -- ^ number of instrs each reg lives for
+ { raGraph :: Color.Graph Reg RegClass Reg -- ^ the colored graph
+ , raPatchedCmm :: [LiveCmmTop] } -- ^ code after register allocation
instance Outputable RegAllocStats where
- ppr (s@RegAllocStatsSpill{})
- = text "-- Spill"
-
- $$ text "-- Native code with liveness information."
+ ppr (s@RegAllocStatsStart{})
+ = text "# Start"
+ $$ text "# Native code with liveness information."
$$ ppr (raLiveCmm s)
- $$ text " "
-
- $$ text "-- Register conflict graph."
+ $$ text ""
+ $$ text "# Initial register conflict graph."
$$ Color.dotGraph regDotColor trivColorable (raGraph s)
- $$ text "-- Spill statistics."
+ ppr (s@RegAllocStatsSpill{})
+ = text "# Spill"
+ $$ text "# Register conflict graph."
+ $$ Color.dotGraph regDotColor trivColorable (raGraph s)
+ $$ text ""
+ $$ text "# Spills inserted."
$$ ppr (raSpillStats s)
-
+ $$ text ""
+ $$ text "# Code with spills inserted."
+ $$ (ppr (raSpilled s))
ppr (s@RegAllocStatsColored{})
- = text "-- Colored"
+ = text "# Colored"
+ $$ text "# Register conflict graph."
+ $$ Color.dotGraph regDotColor trivColorable (raGraph s)
+ $$ text ""
+ $$ text "# Native code after register allocation."
+ $$ ppr (raPatchedCmm s)
- $$ text "-- Native code with liveness information."
- $$ ppr (raLiveCmm s)
- $$ text " "
- $$ text "-- Register conflict graph."
- $$ Color.dotGraph regDotColor trivColorable (raGraph s)
+-- | Do all the different analysis on this list of RegAllocStats
+pprStats :: [RegAllocStats] -> Color.Graph Reg RegClass Reg -> SDoc
+pprStats stats graph
+ = let outSpills = pprStatsSpills stats
+ outLife = pprStatsLifetimes stats
+ outConflict = pprStatsConflict stats
+ outScatter = pprStatsLifeConflict stats graph
- $$ text "-- Native code after register allocation."
- $$ ppr (raPatchedCmm s)
+ in vcat [outSpills, outLife, outConflict, outScatter]
-- | Dump a table of how many spill loads / stores were inserted for each vreg.
spillStats = [ s | s@RegAllocStatsSpill{} <- stats]
-- build a map of how many spill load/stores were inserted for each vreg
- spillLS = foldl' (plusUFM_C accSpillLS) emptyUFM
- $ map (spillLoadStore . raSpillStats) spillStats
+ spillSL = foldl' (plusUFM_C accSpillSL) emptyUFM
+ $ map (spillStoreLoad . raSpillStats) spillStats
-- print the count of load/spills as a tuple so we can read back from the file easilly
- pprSpillLS (r, loads, stores)
+ pprSpillSL (r, loads, stores)
= (parens $ (hcat $ punctuate (text ", ") [doubleQuotes (ppr r), int loads, int stores]))
+ -- sum up the total number of spill instructions inserted
+ spillList = eltsUFM spillSL
+ spillTotal = foldl' (\(s1, l1) (s2, l2) -> (s1 + s2, l1 + l2))
+ (0, 0)
+ $ map (\(n, s, l) -> (s, l))
+ $ spillList
- in ( text "-- spills-added"
- $$ text "-- (reg_name, spill_loads_added, spill_stores_added)."
- $$ (vcat $ map pprSpillLS $ eltsUFM spillLS)
- $$ text "\n")
-
+ in ( text "-- spills-added-total"
+ $$ text "-- (stores, loads)"
+ $$ (ppr spillTotal)
+ $$ text ""
+ $$ text "-- spills-added"
+ $$ text "-- (reg_name, stores, loads)"
+ $$ (vcat $ map pprSpillSL $ spillList)
+ $$ text "")
--- | Dump a table of how long vregs tend to live for.
+-- | Dump a table of how long vregs tend to live for in the initial code.
pprStatsLifetimes
:: [RegAllocStats] -> SDoc
pprStatsLifetimes stats
- = let lifeMap = foldl' plusUFM emptyUFM $ map raLifetimes stats
+ = let lifeMap = foldl' plusUFM emptyUFM
+ [ raLifetimes s | s@RegAllocStatsStart{} <- stats ]
lifeBins = binLifetimeCount lifeMap
in ( text "-- vreg-population-lifetimes"
lifes
--- | Dump a table of how many conflicts vregs tend to have.
+-- | Dump a table of how many conflicts vregs tend to have in the initial code.
pprStatsConflict
:: [RegAllocStats] -> SDoc
= let confMap = foldl' (plusUFM_C (\(c1, n1) (c2, n2) -> (c1, n1 + n2)))
emptyUFM
$ map Color.slurpNodeConflictCount
- $ map raGraph stats
+ [ raGraph s | s@RegAllocStatsStart{} <- stats ]
in ( text "-- vreg-conflicts"
$$ text "-- (conflict_count, number_of_vregs_that_had_that_many_conflicts)"
-- | For every vreg, dump it's how many conflicts it has and its lifetime
-- good for making a scatter plot.
pprStatsLifeConflict
- :: [RegAllocStats] -> Color.Graph Reg RegClass Reg -> SDoc
+ :: [RegAllocStats]
+ -> Color.Graph Reg RegClass Reg -- ^ global register conflict graph
+ -> SDoc
pprStatsLifeConflict stats graph
- = let lifeMap = foldl' plusUFM emptyUFM $ map raLifetimes stats
+ = let lifeMap = foldl' plusUFM emptyUFM
+ [ raLifetimes s | s@RegAllocStatsStart{} <- stats ]
+
scatter = map (\r -> let Just (_, lifetime) = lookupUFM lifeMap r
Just node = Color.lookupNode graph r
in parens $ hcat $ punctuate (text ", ")
projects / ghc-hetmet.git / blobdiff